使用合适的情态动词或其否定式填空
John（）come to see us tonight,but he isn't very sure yet.l've learnt Japanese for five years so l（）tell you the meaningof this Japanese sentence.the play is not interesting.l really（）go now.he（）be in the classroom,lthink.—No,he（）be in the classroom.l saw him go home a minute ago.he isn't at school.l think he（）be ill.